CN2542777Y - Lock cylinder locating device for lock capable of automatic springing-out key - Google Patents

Abstract

The utility model provides a lock core locating device of a lock which can eject automatically a key, comprising a lock shell and a lock core, on the outer wall of which a circular groove is arranged, which is characterized in that: a lock shell circular groove corresponding to the position of the lock core circular groove is arranged on the inner wall of the lock shell; a spring ring is arranged between the lock core circular groove and the lock shell circular groove. The depth of the lock core circular groove is more than or equal to the wire diameter of the spring ring. The lock core locating device of the lock had a reasonable structure: the lock core can not only be fixed located, but also rotate easily and the lock has a steady function, which is suitable for a plurality of places where the locks are needed.

Description

Automatically eject the lock core positioner of the lock of key

(1) technical field

The utility model relates to a kind of improvement of structure of lock of automatic ejection key, specifically a kind of lock core positioner of lock of automatic ejection key.

(2) background technology

The notification number of bulletin was two Chinese patents of CN2388289Y and CN2388290Y on July 19th, 2000, and its patent No. is respectively 99222209.5 and 99222210.9.The patented product is a kind of lock of automatic ejection key, must manually not extract key, and is easy to use, safe.But, because of lock core is located by the alignment pin on the lock housing, when this lock of assembling, the installing and locating pin is difficult for putting in place, and alignment pin inserts and too deeply easily causes lock core to rotate difficulty, inserts too shallow alignment pin and easily becomes flexible, comes off, in case alignment pin becomes flexible, comes off, the function of lock all disappears.There is hidden danger in lock core with the alignment pin location.

(3) summary of the invention

The purpose of this utility model is exactly the lock core positioner that proposes a kind of lock of automatic ejection key in order to overcome above-mentioned shortcoming, and easy to assembly, lock core is firm position not only, and rotates easily.

The purpose of this utility model realizes by following technical scheme: the lock core positioner of this lock comprises lock housing and lock core, outer wall of lock core has annular groove, it is characterized in that lock-shell lining has and the corresponding lock housing annular groove in lock core annular groove position, accompanies turn between lock core annular groove and lock housing annular groove.In when assembling, turn is placed in the lock core annular groove, is enclosed within lock housing that the rear spring circle expands to lock housing annular groove inwall on the lock core, and the relative position of lock housing and lock core is fixed.

For easy to assembly, the degree of depth of lock core annular groove is more than or equal to the silk footpath of turn.

The utility model has the advantages that scientific and reasonable for structure, when opening the lock with the key or shut, lock core firm position and rotating easily, the performance of lock is highly stable.Be applicable to the place that various needs are locked.

(4) description of drawings

Fig. 1 is a kind of lock core positioning device structure cross-sectional schematic of lock of automatic ejection key.

(5) specific embodiment, accompanying drawings:

The lock core positioner of this lock comprises lock housing 1 and lock core 5, accompanies turn 4 between lock housing annular groove 2 and the lock core annular groove 3.Turn 4 expands to lock housing annular groove 2 inwalls, the position relative fixed of lock housing and lock core.When key 6 inserted lock, lock core 5 rotated and is very easy to.

Claims (2)

1. lock core positioner that automatically ejects the lock of key, comprise lock housing and lock core, outer wall of lock core has annular groove, it is characterized in that lock-shell lining has and the corresponding lock housing annular groove in lock core annular groove position, accompanies turn between lock core annular groove and lock housing annular groove.

2. the lock core positioner of lock according to claim 1 is characterized in that the silk footpath of the degree of depth of lock core annular groove more than or equal to turn.